import java.util.Arrays;

public class Solution73 {
    public void setZeroes(int[][] matrix) {
        boolean row = false, col = false;
        for (int i = 0; i < matrix.length; i++) {
            for (int j = 0; j < matrix[0].length; j++) {
                if (matrix[i][j] == 0) {
                    matrix[0][j] = 0;
                    matrix[i][0] = 0;
                    if (!row && i == 0) {
                        row = true;
                    }
                    if (!col && j == 0) {
                        col = true;
                    }
                }
            }
        }
        for (int i = 1; i < matrix.length; i++) {
            if (matrix[i][0] == 0) {
                Arrays.fill(matrix[i], 0);
            }
        }
        for (int j = 1; j < matrix[0].length; j++) {
            if (matrix[0][j] == 0) {
                for (int i = 0; i < matrix.length; i++) {
                    matrix[i][j] = 0;
                }
            }
        }
        if (row) {
            Arrays.fill(matrix[0], 0);
        }
        if (col) {
            for (int i = 0; i < matrix.length; i++) {
                matrix[i][0] = 0;
            }
        }
    }
}
